23391234 has 32 divisors (see below), whose sum is σ = 52721280. Its totient is φ = 7686000.

The previous prime is 23391211. The next prime is 23391257. The reversal of 23391234 is 43219332.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (23391211) and next prime (23391257).

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 23391198 and 23391207.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 784 + ... + 6884.

It is an arithmetic number, because the mean of its divisors is an integer number (1647540).

Almost surely, 2^23391234 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23391234, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26360640).

23391234 is an abundant number, since it is smaller than the sum of its proper divisors (29330046).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23391234 is a wasteful number, since it uses less digits than its factorization.

23391234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6183 (or 6177 counting only the distinct ones).

The product of its digits is 3888, while the sum is 27.

The square root of 23391234 is about 4836.4484903698. The cubic root of 23391234 is about 285.9901295761.

The spelling of 23391234 in words is "twenty-three million, three hundred ninety-one thousand, two hundred thirty-four".